摘要：Abstract The aim of this study is to determine the effects of two different cooperative learning techniques (group investigation technique and learning together technique) on academic achievement of sixth grade students at unit of the "the earth crust consists of what" and the change in student achievement whether or not permanent. The participants of the study were 64 sixth grade students at a primary school in Erzurum, who were in two different classes and taught by the same teacher in the 2010-2011 academic year. One of the classes was randomly selected as the Group Investigation Group (GAG), using group student group investigation technique and the second served as the Learning Together Group (LTG), using group learning together technique. The main instrument for obtaining data was the Academic Achievement Test (AAT). The data obtained on instrument were evaluated by using descriptive statistic, independent samples t test, paired sample t test and effect sizes. As the results of the AAT revealed that, group investigation technique is much more successful than learning together technique in the unit "the earth crust consists of what". Key Words: Cooperative Learning, Group Investigation Technique, Learning Together Technique, Science and Technology Course. Keywords: Cooperative Learning, Group Investigation Technique, Learning Together Technique, Science and Technology Course.
关键词：Cooperative Learning, Group Investigation Technique, Learning Together Technique, Science and Technology Course.;İşbirlikli Öğrenme, Grup Araştırması Tekniği, Birlikte Öğrenme Tekniği, Fen ve Teknoloji Dersi.
